Rollout timings and feature availability vary by phone model, but Lumia Cyan, that includes the WP 8.1 update, will start rolling out this summer following testing and operator approvals. We expect the update roll out to be completed in Q3.
- What to check if I can't add or create the Microsoft account on my Lumia phone during the initial setup?
- How can I unlock my phone so I can use another network operator’s SIM card?
- My phone does not recognise my SIM card
- Can I move or save apps to my memory card on my Lumia phone?
- I have forgotten my PIN or PUK code